SkView::Click* SkView::findClickHandler(SkScalar x, SkScalar y, unsigned modi) {
if (x < 0 || y < 0 || x >= fWidth || y >= fHeight) {
return nullptr;
}
if (this->onSendClickToChildren(x, y, modi)) {
F2BIter iter(this);
SkView* child;
while ((child = iter.next()) != nullptr)
{
SkPoint p;
if (!child->globalToLocal(x, y, &p)) {
continue;
}
Click* click = child->findClickHandler(p.fX, p.fY, modi);
if (click) {
return click;
}
}
}
return this->onFindClickHandler(x, y, modi);
}
SkView::Click* SkView::findClickHandler(SkScalar x, SkScalar y, unsigned modi) {
if (x < 0 || y < 0 || x >= fWidth || y >= fHeight) {
return nullptr;
}
if (this->onSendClickToChildren(x, y, modi)) {
F2BIter iter(this);
SkView* child;
while ((child = iter.next()) != nullptr) {
SkPoint p;
#if 0
if (!child->globalToLocal(x, y, &p)) {
continue;
}
#else
// the above seems broken, so just respecting fLoc for now <reed>
p.set(x - child->fLoc.x(), y - child->fLoc.y());
#endif
Click* click = child->findClickHandler(p.fX, p.fY, modi);
if (click) {
return click;
}
}
}
return this->onFindClickHandler(x, y, modi);
}
void SkView::DoClickUp(Click* click, int x, int y)
{
SkASSERT(click);
SkView* target = (SkView*)SkEventSink::FindSink(click->fTargetID);
if (target == NULL)
return;
click->fIPrev = click->fICurr;
click->fICurr.set(x, y);
click->fPrev = click->fCurr;
click->fCurr.iset(x, y);
target->globalToLocal(&click->fCurr);
click->fState = Click::kUp_State;
target->onClick(click);
}
void SkView::DoClickUp(Click* click, int x, int y)
{
SkASSERT(click);
SkView* target = (SkView*)SkEventSink::FindSink(click->fTargetID);
if (NULL == target) {
return;
}
click->fIPrev = click->fICurr;
click->fICurr.set(x, y);
click->fPrev = click->fCurr;
click->fCurr.iset(x, y);
if (!target->globalToLocal(&click->fCurr)) {
// on failure pretend the mouse didn't move
click->fCurr = click->fPrev;
}
click->fState = Click::kUp_State;
target->onClick(click);
}
void SkView::DoClickDown(Click* click, int x, int y)
{
SkASSERT(click);
SkView* target = (SkView*)SkEventSink::FindSink(click->fTargetID);
if (NULL == target) {
return;
}
click->fIOrig.set(x, y);
click->fICurr = click->fIPrev = click->fIOrig;
click->fOrig.iset(x, y);
if (!target->globalToLocal(&click->fOrig)) {
// no history to let us recover from this failure
return;
}
click->fPrev = click->fCurr = click->fOrig;
click->fState = Click::kDown_State;
target->onClick(click);
}
void SkView::DoClickMoved(Click* click, int x, int y, unsigned modi) {
SkASSERT(click);
SkView* target = (SkView*)SkEventSink::FindSink(click->fTargetID);
if (nullptr == target) {
return;
}
click->fIPrev = click->fICurr;
click->fICurr.set(x, y);
click->fPrev = click->fCurr;
click->fCurr.iset(x, y);
if (!target->globalToLocal(&click->fCurr)) {
// on failure pretend the mouse didn't move
click->fCurr = click->fPrev;
}
click->fState = Click::kMoved_State;
click->fModifierKeys = modi;
target->onClick(click);
}